21324375

素因数分解:

$3^2\times 5^4\times {\mathrm{17}}^1\times {\mathrm{223}}^1$

素因数の和:266

約数の個数: 60

約数和(自身を含む): 40936896

約数和(自身を除く): 19612521

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 125, 153, 223, 225, 255, 375, 425, 625, 669, 765, 1115, 1125, 1275, 1875, 2007, 2125, 3345, 3791, 3825, 5575, 5625, 6375, 10035, 10625, 11373, 16725, 18955, 19125, 27875, 31875, 34119, 50175, 56865, 83625, 94775, 95625, 139375, 170595, 250875, 284325, 418125, 473875, 852975, 1254375, 1421625, 2369375, 4264875, 7108125, 21324375]

約数ペア:

[(1, 21324375), (3, 7108125), (5, 4264875), (9, 2369375), (15, 1421625), (17, 1254375), (25, 852975), (45, 473875), (51, 418125), (75, 284325), (85, 250875), (125, 170595), (153, 139375), (223, 95625), (225, 94775), (255, 83625), (375, 56865), (425, 50175), (625, 34119), (669, 31875), (765, 27875), (1115, 19125), (1125, 18955), (1275, 16725), (1875, 11373), (2007, 10625), (2125, 10035), (3345, 6375), (3791, 5625), (3825, 5575)]